“99” Units 
Safety & Screw 
Type 








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“99°” Safety Type 


This unit has a patented locking mechanism that closes firmly on, and automatically 
centers the glass, but it allows sufficient flexibility for expansion due to heat. In action 
this mechanism is not unlike a camera shutter. It is very easily operated and when 
in place it is locked by a slight turn of a winged nut. (Lindsay U. S: Patent 1071537.) 




















9920 


-SH 


“99” SAFETY UNITS 





ROM the top of the suspension to the bottom of the 


cased glass globe, the ‘‘99”’ Safety Unit is designed to 
give the best that can be secured in modern Direct Light- 
ing Enclosed Units. 

“Many years of résearch and practical experience in 
lighting offices, factories and public buildings, have enabled 
Graybar to put out:a fixture that combines beauty of 
design, correct engineering principles, the finest of ma- 
terials and exacting workmanship. 


The ‘‘99” gives a proper diffusion of light, without 
glare. It is sturdy in construction; easy to clean and care 
for, which gives it long life at very low maintenance cost. 


Lighting Features:—Excellent diffusion—highest effi- 
ciency without glare—Ideal distribution of the lght 
supplied by the lamp—30% above and 53% below the 
horizontal. 


Globe Features:—Best cased 
glass — graceful lines — maxi- 
mum strength—efficient design 
—no objectionable shadows, 
spots or streaks—low absorp- 
tion—uniform, pleasing color. 


Fixture Features: — Dust 
proof — bug proof — heavy 
gauge brass canopy and holder 
—brass chain — high polish 
heavy plated bronze finish— 
rich uniform) “color —— best 
patented safety holder-—No. 
see 14 stranded Deltabeston wire 
unattached. 


Typical ‘‘99”’ I; 














| Hanging Type Ceiling Type 

Unit SUES: Unit 

5 Catalog sf Over Sig ; “ ; : Catalog | Over 

No. | All | Lamp Dia hee Fitter | Weight No. All 
9975-SH | 3914” | 40-75 | 9” | 6%” | 4” 3 lbs. | 9975-SC | 10” 

| 9980-SH | 3914” | 75-100} 10” 6%” 4” 3 lbs. 9980-SC | 1014” 

| 9910-SH | 4014” |100-150} 12” 734” 4” 5 lbs. 9910-SC | 11144” 

| 9920-SH | 4034” 200 14” 9” Om 8 lbs. 9920-SC | 16” 

| 9930-SH | 4134” | 300 | 16” | 10” | 6” | 10%bs. | 9930-SC | 17” 


























(a)—Catalog numbers indicate complete unit. (b)—Over all length is with glass. 
(c)—Units furnished complete with wire unattached and without lamps. (d)—Fix- 
tures and glass packed separately in individual cartons, 








‘“99"> Screw Type 


The “99” Screw Type Unit is consistent in quality with the Safety Type. It 
is above the average screw type fixture in design and construction and will give 
the same splendid service as the ‘‘99’’ Safety Type. 


HE illumination characteristics of this unit are exactly 

the same as those of the ‘‘99”’ Safety Unit, the two 
fixtures having the same globe and socket position. The 
lower price is not due to any cheapening process but to 
the type of holder and refinement of finish. The screw 
holder furnished with this fixture is not the patented safety 
type but is made exceptionally strong, with oversize set 
screw lugs securely fastened to the shell. 


Where the fixture allowance is limited the ‘‘99’’ Screw 
Type Unit will give the same high class illumination as the 
Safety Type at a lower initial cost. 


Lighting Features:—The socket position and globe are 
exactly the same in this unit as in the “99” Safety Type 
which assures the same effec- 
tive illumination. 


Globe Features:—Same en- 
closing globes used as in the 
“99” Safety Type. 


Fixture Features:—Dust 





proofi—— bus. proof —— heavy 























gauge brass canopy and holder 9920-H 
brass chain—egg shell heavy 
plated bronze finish—uniform 
color—substantial screw type 
holder—No. 14 stranded Del- 
tabeston wire unattached. 
on in Dep’t. Stores 
“99” SCREW TYPE UNITS 
= ears — H _ 
| Complete Complete 
Hanging Type Glass Ceiling Type 
| Unit | Unit 
| —— - |___— 
| ee | Se ee Dia “Depth Fitter Weight ere BA 
9975-H | 3214” | 40-75 | -9” | 614”| 4” | 31bs. | 9975-c | 10” 
| 9980-H | 3214” | 75-100] 10” | 614”| 4” | 31bs. | 9980-C | 11” 
| 9910-H | 3334” |100-150| 12” | 734”| 4” | 5lbs. | 9910-C | 12” 
9920-H | 3434” | 200 14% |) 9” 6” | 8ibs. | 9920-C | 14” 
| 9930-H | 3534” | 300 16” | 10” | ‘6? 10 Ibs. | 9930-C | 1434” 
| 9950-H | 38” | 500 | 18” | 12” Simoes 16 thse) 9950-C. 417% 


(a)—Catalog numbers indicate complete units. (b)—Over all length is with glass. 
(c)—Units furnished complete with wire unattached and without lamps. (d)—Fix- 
tures and glass packed separately in individual cartons, 





“99°” Special Types 





The above illustrations will be 
recognized as modifications in de- 
sign of the standard ‘‘99”’ Safety 
Type described on the preceding 


pages. 


The 199-SH is the 99-SH with 
a cast metal spindle provided at the 
lower end of the chain. This sim- 
ple decoration is a touch that gives 
it dignity and distinction for bet- 
ter installations. 


The 299-SH is the 99-SH type 
with a tube suspension replacing 
the standard chain. This tube 
consists of 24-inch heavy brass cas- 
ing covering iron pipe and double 
cast brass loops at either end. 
This modification is often required 
for schools and hospitals. 


The modifications illustrated 
above with ‘‘99”’ Safety Type Units 
may also be applied to the Screw 
Type Units. 


“99” SPECIAL TYPES 





29920-SH 














19920-SH (Catalog numbers of complete units) 
Size | O all 
| eae | Tereth Safety Types (SH) Screw Types (H) 
40-75 3914” 19975-SH 29975-SH 19975-H 29975-H 
75-100 3914” 19980-SH | 29980-SH 19980-H 29980-H 
100-150 404" 19910-SH 29910-SH 19910-H 29910-H 
200 4034” 19920-SH 29920-SH 19920-H 29920-H 
300 4134” 19930-SH | 29930-SH 19930-H 29930-H 











Over all length is with glass—Units furnished complete with wire unattached—Fixtures and glass packed separately 


in individual cartons. 





2-K-26-10 


Offices in 59 Principal Cities. 





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ELECTRICAL SUPPLIES 


Printed in U.S. A. 


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Successor to Wesfern Electric Supply Dept. 


Executive Offices, 100 East 42nd St., New York 


GB-L-5 


